Inventories and Equipment on Operating Leases, Net - Equipment on Operating Leases and Accumulated Depreciation (Details) - Equipment on Operating Leases and Related Accumulated Depreciation - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Equipment on Operating Leases, Net [Line Items]
Equipment on operating leases	$ 1,388	$ 1,443
Accumulated depreciation	(1,087)	(1,079)
Equipment on operating leases, net	$ 301	$ 364